1.Curculigo orchioides: the black gold with numerous health benefits.
Chauhan, Nagendra Singh ; Sharma, Vikas ; Thakur, Mayank ; Dixit, Vinod Kumar
Journal of Integrative Medicine 2010;8(7):613-23
Curculigo orchioides Gaertn. (family Amarylladaceae) is an endangered rasayana herb which is popularly known as "Kali Musli". The plant is native to India, and holds a special position as a potent adaptogen and aphrodisiac in Ayurvedic system of medicine. It is an important ingredient of many Ayurvedic preparations and is considered to have aphrodisiac, immunostimulant, hepatoprotective, antioxidant, anticancer and antidiabetic activities. Various chemical constituents like mucilage, phenolic glycosides, saponins and aliphatic compounds from the plant have been reported. The plant is also considered as an important component of various herbal preparations of the Chinese and Kampo medicine. The present review is an attempt to enumerate various biologically tested activities and evaluation of different phytochemicals present in this important medicinal plant.
2.Expression and lytic efficacy assessment of the Staphylococcus aureus phage SA4 lysin gene.
Anil Kumar MISHRA ; Mayank RAWAT ; Konasagara Nagaleekar VISWAS ; ABHISHEK ; Sujeet KUMAR ; Manjunatha REDDY
Journal of Veterinary Science 2013;14(1):37-43
Treatment of bovine mastitis caused by Staphylococcus (S.) aureus is becoming very difficult due to the emergence of multidrug-resistant strains. Hence, the search for novel therapeutic alternatives has become of great importance. Consequently, bacteriophages and their endolysins have been identified as potential therapeutic alternatives to antibiotic therapy against S. aureus. In the present study, the gene encoding lysin (LysSA4) in S. aureus phage SA4 was cloned and the nucleotide sequence was determined. Sequence analysis of the recombinant clone revealed a single 802-bp open reading frame encoding a partial protein with a calculated mass of 30 kDa. Results of this analysis also indicated that the LysSA4 sequence shared a high homology with endolysin of the GH15 phage and other reported phages. The LysSA4 gene of the SA4 phage was subsequently expressed in Escherichia coli. Recombinant LysSA4 induced the lysis of host bacteria in a spot inoculation test, indicating that the protein was expressed and functionally active. Furthermore, recombinant lysin was found to have lytic activity, albeit a low level, against mastitogenic Staphylococcus isolates of bovine origin. Data from the current study can be used to develop therapeutic tools for treating diseases caused by drug-resistant S. aureus strains.
Animals
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Base Sequence
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Cloning, Molecular
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Gene Expression Regulation, Viral/physiology
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Mucoproteins/genetics/*metabolism
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Phylogeny
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Polymerase Chain Reaction/methods
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Recombinant Proteins
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Staphylococcus Phages/genetics/*metabolism/physiology
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Staphylococcus aureus/*virology
3.Solid and liquid state characterization of tetrahydrocurcumin using XRPD, FT-IR, DSC, TGA, LC-MS, GC-MS, and NMR and its biological activities
Trivedi Kumar MAHENDRA ; Panda PARTHASARATHI ; Sethi Kumar KALYAN ; Gangwar MAYANK ; Mondal Charan SAMBHU ; Jana SNEHASIS
Journal of Pharmaceutical Analysis 2020;10(4):334-345
Tetrahydrocurcumin (THC) is one of the major metabolites of curcumin (CUR), an ancient bioactive natural polyphenolic compound. This research article describes both the solid and liquid state charac-terization of THC using advanced spectroscopic and thermo-analytical techniques. Anti-inflammatory, anti-oxidant, and neuroprotective activities of THC were investigated using in vitro cell lines. Liquid chromatography-mass spectrometry analysis revealed that our sample comprised 95.15% THC, 0.51% tetrahydrodemethoxycurcumin (THDC), 3.40% hexahydrocurcumin, and 0.94% octahydrocurcumin. Gas chromatography-mass spectrometry analysis indicated the presence of 96.68% THC and 3.32% THDC. THC in solution existed as keto-enol tautomers in three different forms at different retention time, but the enol form was found to be dominant, which was also supported by nuclear magnetic resonance analysis. THC was thermally stable up to 335.55 ℃. THC exhibited more suppression of cytokines (TNF-α, IL-1β, and MIP-1α) than CUR in a concentration-dependent manner in mouse splenocytes, while NK-cell and phagocytosis activity was increased in macrophages. THC showed a significant reduction of free radicals (LPO) along with improved antioxidant enzymes (SOD and catalase) and increased free radical scav-enging activity against ABTS+ radicals in HepG2 cells. THC displayed higher protection capability than CUR from oxidative stress and neuronal damage by improving cell viability against H2O2 induced HepG2 cells and MPP+ induced SH-SY5Y cells, respectively, in a concentration-dependent manner. Thus, a variation of the biological activities of THC might rely on its keto-enol form and the presence of other THC analogs as impurities. The present study could be advantageous for further research on THC for better understanding its physicochemical properties and biological variation.
4.Comparative study of multiple cancellous screws versus sliding hip screws in femoral neck fractures of young adults.
Mayank GUPTA ; R-K ARYA ; Satish KUMAR ; Vijay-Kumar JAIN ; Skand SINHA ; Ananta-Kumar NAIK
Chinese Journal of Traumatology 2016;19(4):209-212
PURPOSEBoth cannulated cancellous screw (CCS) and sliding hip screw (SHS) are used in femoral neck fracture fixations, but which is superior is yet to be determined. This study was aimed to compare the clinicoradiological outcome of femoral neck fracture treated with SHS or CCS in young adults.
METHODSAdults (16e60 years) with femoral neck fracture were divided into Group 1 fixed with SHS and Group 2 fixed with three CCS after closed reduction. Pain relief, functional recovery and postoperative radiographs at 6 weeks, 3 months, 6 months and then yearly for upto 4 years were analyzed.
RESULTSGroup 1 (n=40) achieved radiological union at mean of 7.6 months, with the union rate of 87.5% (n=35), avascular necrosis (AVN) rate of 7.5% (n=3) and mean Harris Hip Score (HHS) of 86.15 at the end of 4 years. In Group 2 (n=45) these parameters were union at 7.1 months, union rate of 82.22% (n=37), AVN rate of 6.67% (n=3) and HHS of 88.65. Comparative results were statistically insignificant.
CONCLUSIONThere is no significant difference in clinicoradiological outcome between the two implants.
Adolescent ; Adult ; Bone Screws ; Female ; Femoral Neck Fractures ; diagnostic imaging ; physiopathology ; surgery ; Humans ; Male ; Middle Aged ; Osteonecrosis ; epidemiology ; Postoperative Complications ; epidemiology ; Prospective Studies ; Recovery of Function ; Young Adult
5.Prevalence of dental anxiety in 10-14 years old children and its implications.
Mayank KAKKAR ; Astha WAHI ; Radhika THAKKAR ; Iqra VOHRA ; Arvind Kumar SHUKLA
Journal of Dental Anesthesia and Pain Medicine 2016;16(3):199-202
BACKGROUND: The aim of this study was to provide insight on dental fear amongst schoolchildren and evaluate the association between caries experience and fear of dental procedures. METHODS: A sample size of 250 students (both sexes) of ages 10-14 years were enrolled in the study. Before dental examination, each participant was informed about the study and given the Children's Fear Survey Schedule - Dental Subscale (CFSS-DS) questionnaire. Children who scored greater than 38 were included in the 'with dental fear' group and those who scored less than 38 were assigned to the 'without dental fear' group. All oral check-ups were carried out on the school premises according to WHO criteria. RESULTS: There were 105 children (42%) who experienced dental fear. As CFSS-DS scores increased, scores on the Decayed, Missing and Filled Surfaces Index (DMFS) also increased. Scores were highest on "injections" followed by "dentist drill" and "feeling of choking". Children were significantly less anxious about items of dental treatment if they had experienced that particular form of treatment. Female participants were found to be more dentally anxious than the male participants. CONCLUSIONS: The data revealed dental fear in 10-14 years old children and showed that dental fear scores decreased with increase in age and experience.
Appointments and Schedules
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Child*
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Dental Anxiety*
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Female
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Humans
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Male
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Prevalence*
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Sample Size
6.Diverse characters of Brennan’s paw incision model regarding certain parameters in the rat
Rahul KUMAR ; Shivani GUPTA ; Mayank GAUTAM ; Saroj Kaler JHAJHRIA ; Subrata Basu RAY
The Korean Journal of Pain 2019;32(3):168-177
BACKGROUND: Brennan’s rodent paw incision model has been extensively used for understanding mechanisms underlying postoperative pain in humans. However, alterations of physiological parameters like blood pressure and heart rate, or even feeding and drinking patterns after the incision have not been documented as yet. Moreover, though eicosanoids like prostaglandins and leukotrienes contribute to inflammation, tissue levels of these inflammatory mediators have never been studied. This work further investigates the antinociceptive effect of protein C after intra-wound administration. METHODS: Separate groups of Sprague–Dawley rats were used for quantitation of cyclooxygenase (COX) activity and leukotriene B4 level by enzyme-linked immunosorbent assay, as well as estimation of cardiovascular parameters and feeding and drinking behavior after paw incision. In the next part, rats were subjected to incision and 10 μg of protein C was locally administered by a micropipette. Both evoked and non-evoked pain parameters were then estimated. RESULTS: COX, particularly COX-2 activity and leukotriene B4 levels increased after incision. Hemodynamic parameters were normal. Feeding and drinking were affected on days 1 and 3, and on day 1, respectively. Protein C attenuated non-evoked pain behavior alone up to day 2. CONCLUSIONS: Based upon current observations, Brennan’s rodent paw incision model appears to exhibit a prolonged period of nociception similar to that after surgery, with minimal interference of physiological parameters. Protein C, which is likely converted to activated protein C in the wound, attenuated the guarding score, which probably represents pain at rest after surgery in humans.
Animals
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Blood Pressure
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Drinking
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Drinking Behavior
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Eicosanoids
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Enzyme-Linked Immunosorbent Assay
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Heart Rate
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Hemodynamics
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Humans
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Inflammation
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Leukotriene B4
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Leukotrienes
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Nociception
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Pain, Postoperative
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Prostaglandin-Endoperoxide Synthases
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Prostaglandins
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Protein C
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Rats
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Rodentia
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Wounds and Injuries
7.Evaluation of antimicrobial activity and bronchodialator effect of a polyherbal drug-Shrishadi.
Divya Kumari KAJARIA ; Mayank GANGWAR ; Dharmendra KUMAR ; Amit Kumar SHARMA ; Ragini TILAK ; Gopal NATH ; Yamini Bhusan TRIPATHI ; J S TRIPATHI ; S K TIWARI
Asian Pacific Journal of Tropical Biomedicine 2012;2(11):905-909
OBJECTIVETo investigate antimicrobial and bronchodialator effect of hydroalcholic extract of polyherbal drug Shirishadi containing Shirisha (Albezzia lebbeck), Nagarmotha (Cyprus rotandus) & Kantakari (Solanum xanthocarpum).
METHODSAntimicrobial activity was evaluated by disc diffusion method and MIC, MBC, MFC were calculated by micro dilution method. Hydroalcholic extract of this preparation was investigated for its phytochemical analysis, phenol and flavonoid were determined by spectrophotometric method and in vivo bronchodilator effect was analysed by convulsion time.
RESULTSThe phytochemical tests revealed presence of alkaloids, anthraquinones, carbohydrates, flavonoids, saponins and tannins. The antimicrobial result showed the MIC of 6.25 mg/mL against Staphylococcus aureus and 12.5 mg/mL for Escherichia coli and 12.5 mg/mL against remaining bacteria tested, with strong antifungal activity. The maximum inhibition zone is found against Pseudomonas aeruginosa with MIC 16 mg/mL. Drug showed significant bronchodilator effect with 27.86% & 36.13% increase in preconvulsion time of guinea pigs pretreated with 100 & 200 mg/kg body weight of extract.
CONCLUSIONSThe study reveals that the extracts possess antibacterial activity and antifungal activity in a dose dependent manner. This antimicrobial property may be due to presence of several saponins, further studies are highly needed for the drug development.
Albizzia ; chemistry ; Animals ; Anti-Bacterial Agents ; chemistry ; pharmacology ; Bacteria ; drug effects ; Bronchial Spasm ; Bronchodilator Agents ; chemistry ; pharmacology ; Guinea Pigs ; Medicine, Ayurvedic ; Microbial Sensitivity Tests ; Phytotherapy ; Plant Extracts ; chemistry ; pharmacology ; Solanum ; chemistry
8.Clinical and Social Outcomes of Cochlear Implantation in Older Prelinguals
Pragya TYAGI ; Divya CHAUHAN ; Anup SINGH ; Mayank BHUTADA ; Kapil SIKKA ; Tanvi CHAUDHARY ; Sonam SHARMA ; Shivani AGARWAL ; Hitesh VERMA ; Prem SAGAR ; Rakesh KUMAR ; Alok THAKAR
Journal of Audiology & Otology 2023;27(2):63-70
Background and Objectives:
Cochlear implantation in late implanted prelinguals necessitates a complex decision-making process for clinicians and patients due to the uncertainty of achieving adequate benefit in auditory and speech perception. This study longitudinally evaluated clinical and social outcomes of prelingually deaf children with implantation in their late childhood.
Subjects and Methods:
A total of 113 (49 females and 64 males) participants, with an age range of 5-15 years, were assessed for the pre-implant parameters such as hearing loss etiology, aided responses, anatomical aspects, and psychological evaluation. The Category of Auditory Performance, Speech Awareness Threshold, Speech Reception Threshold, and Speech Discrimination Score were administered to assess the patient’s auditory skills. Further, the Speech Intelligibility Rating scale was administered to evaluate the patient’s speech intelligibility at 3, 6, 9, 12, 18, and 24 months post-surgery. Subjectively perceived benefits were evaluated using the satisfaction rating scale and a questionnaire.
Results:
The statistical results showed a significant impact of cochlear implantation in all domains. Positive impact and improvement post-implantation were noted in all the spheres, including auditory, linguistic, social, and educational.
Conclusions
The study highlighted that the outcomes of a cochlear implant at a later age might not parallel with the implantation at a younger age. However, this still provides measurable benefits even after a longer period of auditory deprivation.
9.Herbal antioxidant in clinical practice: a review.
Shashi ALOK ; Sanjay Kumar JAIN ; Amita VERMA ; Mayank KUMAR ; Alok MAHOR ; Monika SABHARWAL
Asian Pacific Journal of Tropical Biomedicine 2014;4(1):78-84
Antioxidant-the word itself is magic. Using the antioxidant concept as a spearhead in proposed mechanisms for staving off so-called "free-radical" reactions, the rush is on to mine claims for the latest and most effective combination of free-radical scavenging compounds. We must acknowledge that such "radicals" have definitively been shown to damage all biochemical components such as DNA/RNA, carbohydrates, unsaturated lipids, proteins, and micronutrients such as carotenoids (alpha and beta carotene, lycopene), vitamins A, B6, B12, and folate. Defense strategies against such aggressive radical species include enzymes, antioxidants that occur naturally in the body (glutathione, uric acid, ubiquinol-10, and others) and radical scavenging nutrients, such as vitamins A, C, and E, and carotenoids. This paper will present a brief discussion of some well- and little-known herbs that may add to the optimization of antioxidant status and therefore offer added preventive values for overall health. It is important to state at the outset that antioxidants vary widely in their free-radical quenching effects and each may be individually attracted to specific cell sites. Further evidence of the specialized nature of the carotenoids is demonstrated by the appearance of two carotenoids in the macula region of the retina where beta-carotene is totally absent.
Antioxidants
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Plant Preparations
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Plants, Medicinal